one area he has credibility is on the environment. many years ago before it was a mainstream subject, he was championing protecting the rain forest and wildlife. he was talking about that today on british tv and he made a few comments. he says since he found out he's going to become a grandfather, the duchess of cambridge is obviously pregnant, his opinions about conservation have actually become much stronger. >> have gone on for years about importance of thinking, about the long term, in relation to environmental damage, climate change, everything else. because we don't really in a sense airline world want to hand on an increasingly dysfunctional world to our grandchildren. and i don't want to be confronted by my future grandchild say, why didn't you do something. so clearly, now that there's a -- we'll have a grandchild, obviously, it makes it even more obvious, you know, to try and make sure we have them, leave them something that isn't a totally poisoned -- >> this is something, wolf, he spoke about in the past. he thinks it's th